function show(tips){   
	var mainColor = "#369";   //创建一个div对象（背景层）   
	var bgObj = document.createElement("div");   
	bgObj.setAttribute("id","tips_a");   
	document.body.appendChild(bgObj);   
	bgObj.style.position = "absolute";   
	bgObj.style.zIndex = "9998";  
	bgObj.style.background = "#777";  
	bgObj.style.filter = "alpha(opacity=50)";   
	bgObj.style.opacity = "0.5";   
	bgObj.style.top = "0";   
	bgObj.style.left = "0";   
	bgObj.style.width = document.documentElement.scrollWidth + "px";   
	bgObj.style.height = document.documentElement.scrollHeight + "px";   //创建一个div对象（提示框）   
	var tsObj = document.createElement("div");   
	tsObj.setAttribute("id","tips_b");   
	document.body.appendChild(tsObj);   
	tsObj.style.position = "absolute";   
	tsObj.style.zIndex = "9999";   
	tsObj.style.background = "#fff";  
	tsObj.style.border = "1px solid " + mainColor;   
	tsObj.style.textAlign = "center";   //创建一个h4对象（标题栏/关闭）   
	var cls = document.createElement("h4");   
	cls.setAttribute("id","tips_t");   
	document.getElementById("tips_b").appendChild(cls);   
	cls.style.textAlign = "right";   
	cls.style.margin = "0";   
	cls.style.padding = "5px";   
	cls.style.background = mainColor;   //创建一个span对象（关闭×）   
	var cls_gb = document.createElement("span");   
	document.getElementById("tips_t").appendChild(cls_gb);   
	cls_gb.style.color = "#fff";   
	cls_gb.style.font = "12px 宋体";   
	cls_gb.style.cursor = "pointer";   
	cls_gb.innerHTML = "×";   
	cls_gb.onclick = hide;   //创建一个div对象（提示信息）   
	var strObj = document.createElement("div");   
	document.getElementById("tips_b").appendChild(strObj);   
	strObj.style.padding = "15px 30px";   
	strObj.style.font = "12px 宋体";   
	strObj.style.lineHeight = "21px";   
	strObj.innerHTML = tips;   //创建一个input对象（提示框按钮/关闭）   
	var btn = document.createElement("input");   
	btn.setAttribute("type","button");   
	btn.setAttribute("value","关闭");  
	document.getElementById("tips_b").appendChild(btn);  
	btn.style.border = 0;   
	btn.style.color = "#fff";   
	btn.style.background = mainColor;   
	btn.style.margin = "0 15px 15px 15px";   
	btn.style.padding = "0 8px";   
	btn.onclick = hide;   //定位提示层top/left   
	tsObj.style.top = document.documentElement.scrollTop + (document.documentElement.clientHeight - tsObj.clientHeight)/2 + "px";   
	tsObj.style.left = (document.documentElement.clientWidth - tsObj.clientWidth)/2 + "px"; //删除提示层   
	
	function hide(){     
		document.getElementById("tips_t").removeChild(cls_gb);//删除标题栏里面的关闭×     
		document.getElementById("tips_b").removeChild(cls);//删除提示框里面的标题栏     
		document.getElementById("tips_b").removeChild(strObj);//删除提示框里面的提示信息     
		document.getElementById("tips_b").removeChild(btn);//删除提示框里面的关闭按钮     
		document.body.removeChild(tsObj);//删除提示框     
		document.body.removeChild(bgObj);//删除背景层   
	} 
} 
//创建一个div对象（背景层） 
var bgObj = document.createElement("div"); 
//创建一个div对象（提示框） 
var tsObj = document.createElement("div"); 
//创建一个div对象（提示信息） 
var strObj = document.createElement("div"); 
//弹出提示层背景变灰不可操作 
function showloading(tips){   
	var mainColor = "#369";   
	bgObj.setAttribute("id","tips_a");   
	document.body.appendChild(bgObj);   
	bgObj.style.position = "absolute";   
	bgObj.style.zIndex = "9998";   
	bgObj.style.background = "#777";   
	bgObj.style.filter = "alpha(opacity=50)";   
	bgObj.style.opacity = "0.5";   
	bgObj.style.top = "0";   
	bgObj.style.left = "0";   
	bgObj.style.width = document.documentElement.scrollWidth + "px";   
	bgObj.style.height = document.documentElement.scrollHeight + "px";   
	tsObj.setAttribute("id","tips_b");   
	document.body.appendChild(tsObj);   
	tsObj.style.position = "absolute";   
	tsObj.style.zIndex = "9999";   
	tsObj.style.background = "#fff";   
	tsObj.style.border = "1px solid " + mainColor;   
	tsObj.style.textAlign = "center";   
	document.getElementById("tips_b").appendChild(strObj);   
	strObj.style.padding = "15px 15px";   
	strObj.style.font = "13px 幼圆";   
	strObj.style.lineHeight = "21px";  
	//定位提示层top/left   
	tsObj.style.top = document.documentElement.scrollTop + (document.documentElement.clientHeight - tsObj.clientHeight)/2 + "px";   
	tsObj.style.left = (document.documentElement.clientWidth - tsObj.clientWidth)/2 + "px";  
	strObj.innerHTML = "<div>"+tips+"</div><img border='0' src='pages/website/images/ing.gif' />";   

} 
//删除提示层 
function hideloading(){   
	$("#tips_b").remove();   
	$("#tips_a").remove(); 
} 